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Question
triangle rst was transformed using the rule (x,y)→( - x,-y). the vertices of the triangles are shown. r(1,1) s(3,1) t(1,6) r(-1,-1) s(-3,-1) t(-1,-6) which best describes the transformation? the transformation was a 360° rotation about the origin. the transformation was a 270° rotation about the origin. the transformation was a 180° rotation about the origin. the transformation was a 90° rotation about the origin.
Step1: Analizar la regla de transformación
La regla es $(x,y)\to(-x, -y)$.
Step2: Recodar reglas de rotación
Una rotación de $180^{\circ}$ en el origen tiene la regla $(x,y)\to(-x, -y)$.
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La transformación fue una rotación de $180^{\circ}$ alrededor del origen.